Year	%
1995	21.73
1996	21.72
1997	21.72
1998	21.72
1999	21.72
2000	21.72
2001	21.72
2002	21.72
2003	21.72
2005	21.1
2006	21.1
2008	21.1
2009	19.47
2010	19.47
2011	19.47
2013	19.47
2014	19.47
2015	20.08
2016	20.08
2020	20.25
2021	20.25